Targeting S+ (version 31 and above) requires that one of FLAG_IMMUTABLE or FLAG_MUTABLE be specified when creating a PendingIntent - xamarin.forms

Question

I am getting the below error for my xamarin forms application on version 31 and above.
com.mycompanyname.myappname: Targeting S+ (version 31 and above) requires that one of FLAG_IMMUTABLE or FLAG_MUTABLE be specified when creating a PendingIntent.
Strongly consider using FLAG_IMMUTABLE, only use FLAG_MUTABLE if some functionality depends on the PendingIntent being mutable, e.g. if it needs to be used with inline replies or bubbles.
[ImeFocusController] onWindowFocus: DecorView#74e918a[MainActivity] softInputMode=STATE_UNSPECIFIED|ADJUST_RESIZE|IS_FORWARD_NAVIGATION
[ImeFocusController] Restarting due to isRestartOnNextWindowFocus as true
[ImeFocusController] onViewFocusChanged, view=DecorView#74e918a[MainActivity], mServedView=null
[ImeFocusController] checkFocus: view=null next=DecorView#74e918a[MainActivity] force=true package=
The thread 0xb has exited with code 0 (0x0).
[AndroidRuntime] FATAL EXCEPTION: pool-2-thread-1
[AndroidRuntime] Process: com.mycompanyname.myappname, PID: 7466
[AndroidRuntime] java.lang.IllegalArgumentException: com.mycompanyname.myappname: Targeting S+ (version 31 and above) requires that one of FLAG_IMMUTABLE or FLAG_MUTABLE be specified when creating a PendingIntent.
[AndroidRuntime] Strongly consider using FLAG_IMMUTABLE, only use FLAG_MUTABLE if some functionality depends on the PendingIntent being mutable, e.g. if it needs to be used with inline replies or bubbles.
[AndroidRuntime] at android.app.PendingIntent.checkFlags(PendingIntent.java:375)
[AndroidRuntime] at android.app.PendingIntent.getBroadcastAsUser(PendingIntent.java:645)
[AndroidRuntime] at android.app.PendingIntent.getBroadcast(PendingIntent.java:632)
[AndroidRuntime] at com.google.firebase.iid.zzl.zzd(Unknown Source:18)
[AndroidRuntime] at com.google.firebase.iid.zzl.zzb(Unknown Source:229)
[AndroidRuntime] at com.google.firebase.iid.zzl.zza(Unknown Source:0)
[AndroidRuntime] at com.google.firebase.iid.zzj.zzb(Unknown Source:41)
[AndroidRuntime] at com.google.firebase.iid.zzj.getToken(Unknown Source:56)
[AndroidRuntime] at com.google.firebase.iid.FirebaseInstanceId.getToken(Unknown Source:10)
[AndroidRuntime] at com.google.firebase.iid.FirebaseInstanceId.zzcfy(Unknown Source:4)
[AndroidRuntime] at com.google.firebase.iid.FirebaseInstanceIdService.zza(Unknown Source:148)
[AndroidRuntime] at com.google.firebase.iid.FirebaseInstanceIdService.handleIntent(Unknown Source:122)
[AndroidRuntime] at com.google.firebase.iid.zzc.run(Unknown Source:4)
[AndroidRuntime] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
[AndroidRuntime] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
[AndroidRuntime] at java.lang.Thread.run(Thread.java:920)
Thread started: #12
Java.Lang.IllegalArgumentException: 'com.mycompanyname.myappname: Targeting S+ (version 31 and above) requires that one of FLAG_IMMUTABLE or FLAG_MUTABLE be specified when creating a PendingIntent.
Strongly consider using FLAG_IMMUTABLE, only use FLAG_MUTABLE if some functionality depends on the PendingIntent being mutable, e.g. if it needs to be used with inline replies or bubbles.'
I am using pendingIntent on my project for FCM.
var intent = new Intent(this, typeof(MainActivity));
intent.AddFlags(ActivityFlags.ClearTop);
var pendingIntent = PendingIntent.GetActivity(this, 0, intent, PendingIntentFlags.OneShot);
I tried FLAG_IMMUTABLE and FLAG_MUTABLE instead of OneShot, but app is breaking. I commented the entire code related to FCM, but after that also, the app is breaking with the same issue.
I tried updating the FCM related Packages, that also don't work. Any other olutions?

Answer 1

You can recheck your problem by following steps as follows:
1.try to update all your firebase libraries and google libraries to the latest;
2.try to add PendingIntent.FLAG_IMMUTABLE to your pending intents.
Here is an example :
var intent = new Intent(this,typeof(MainActivity));
var pendingIntentFlags = (Build.VERSION.SdkInt >= BuildVersionCodes.S)
? PendingIntentFlags.UpdateCurrent | PendingIntentFlags.Mutable
: PendingIntentFlags.UpdateCurrent;
var pendingActivityIntent = PendingIntent.GetActivity(Application.Context, requestCode, intent, pendingIntentFlags);
For more information, you can check this link: PendingIntent#FLAG_IMMUTABLE
3.check if you have installed the latest nuget Xamarin.AndroidX.work.runtime;